Manuals / Lenovo / Computer Equipment / Personal Computer

Lenovo 3496, 3493DFU manual Locking the computer cover, Installing a padlock

Models: 3493 3496 3493DFU

1 144

Download 144 pages 59.7 Kb

Page 38

Locking the computer cover

Locking the computer cover helps prevent unauthorized people from gaining access to the inside of your computer. Your computer comes with a padlock loop so that the computer cover cannot be removed when a padlock is installed.

Figure 7. Installing a padlock

26ThinkCentre User Guide

Image 38

Lenovo 3496, 3493DFU manual Locking the computer cover, Installing a padlock

Contents

ThinkCentre User Guide Third Edition September Copyright Lenovo Contents Appendix A. Notices 115 Index Iv ThinkCentre User Guide Static electricity prevention Important safety informationService and upgrades Power cords and power adapters Extension cords and related devicesHeat and product ventilation Plugs and outletsExternal devices Modem safety information Operating environmentLaser compliance statement Power supply statementCleaning and maintenance ThinkCentre User Guide Features Product overviewSystem management features ConnectivitySecurity features Input/Output I/O featuresPower supply Preinstalled software programsSpecifications WeightLenovo programs Accessing Lenovo programs on the Windows 7 operating systemAccessing Lenovo programs from Control Panel Communications Utility Accessing Lenovo programs on the Windows 8 operating systemAn introduction to Lenovo programs Password Manager Lenovo SettingsLenovo Solution Center Power ManagerLocations Rescue and RecoverySystem Update SimpleTapFront connector, control, and indicator locations Locating connectors on the rear of your computer Connector DescriptionLocating components Component locationsLocating parts on the system board System board part locationsLocating internal drives Drive bay locationsMachine type and model label Machine type and model labelAccessing Control Panel on the Windows 8 operating system Using your computerFrequently asked questions Where can I find help about the Windows operating system?Using the blue ThinkVantage button Using the keyboardUsing Windows shortcut keys Using a fingerprint readerSetting the volume from the desktop Using the wheel mouseAdjusting audio Adding the volume icon to the taskbarSound section, click Adjust system volume Setting the volume from Control PanelUsing CDs and DVDs Handling and storing CD and DVD mediaPlaying a CD or DVD Recording a CD or DVDThinkCentre User Guide Arranging your workspace Accessibility and comfortYou and your computer ComfortElectrical outlets and cable lengths Glare and lightingAir circulation Moving your computer to another country or region Voltage-selection switchRegistering your computer Replacement power cords Security features SecurityInstalling a padlock Locking the computer coverAttaching an integrated cable lock Using passwordsBios passwords Using and understanding firewalls Windows passwordsConfiguring the fingerprint reader Protecting data against virusesSecurity ThinkCentre User Guide Installing external options Installing or replacing hardwareInstalling or replacing hardware Handling static-sensitive devicesRemoving and reinstalling the front bezel Removing the computer coverWhat to do next Removing the front bezelAccessing the system board components and drives Pivoting the drive bay assembly upwardInstalling or replacing a PCI card Lowering the drive bay assemblyRemoving a PCI card Installing or replacing a memory module Removing a memory moduleReplacing the battery Opening the retaining clipsInstall a new battery Pivoting the drive bay assembly Replacing the hard disk driveRemoving the hard disk drive Installing the hard disk drive Replacing the optical driveSlide the optical drive out of the front of the computer Installing a new optical drive Replacing the power supply assembly Installing the optical driveThinkCentre User Guide Removing the heat sink fan duct Installing the power supply assembly Replacing the heat sink and fan assembly Installing the heat sink fan ductRemoving the heat sink fan duct Removing the heat sink and fan assembly Replacing the microprocessor What to do nextAccessing the microprocessor Installing the microprocessor Replacing the system fan assembly Removing the system fan assemblyReplacing the front audio and USB assembly Installing the system fan assemblyReplacing the WiFi units Removing the front audio and USB assemblyRemoving the WiFi adapter card Removing the WiFi card moduleRemoving the WiFi antenna cables Installing the WiFi units Removing the WiFi card moduleInstalling the WiFi card module Installing or removing the rear WiFi antenna Installing the rear WiFi antennaRemoving the rear WiFi antenna Installing the rear WiFi antennaInstalling or removing the front WiFi antenna Installing the front WiFi antennaRemoving the front WiFi antenna Installing the front WiFi antennaRemoving the front WiFi antenna Replacing the keyboard or mouseCompleting the parts replacement Reinstalling the computer coverObtaining device drivers Creating and using recovery media Recovery informationRecovery information for the Windows 7 operating system Using recovery media Performing backup and recovery operationsCreating recovery media Performing a backup operationClick the Restore your system from a backup icon Using the Rescue and Recovery workspacePerforming a recovery operation Creating a rescue medium Creating and using a rescue mediumUsing a rescue medium Reinstalling preinstalled device drivers Reinstalling preinstalled applications and device driversReinstalling preinstalled applications Solving recovery problems Reinstalling software programsReinstalling device drivers Recovery information for the Windows 8 operating system Refreshing your computerThinkCentre User Guide Viewing and changing settings Using the Setup Utility programStarting the Setup Utility program Administrator Password Password considerationsPower-On Password Hard Disk PasswordErasing lost or forgotten passwords clearing Cmos Enabling or disabling a deviceSelecting a temporary startup device Enabling ErP compliance modeSelecting a startup device Selecting or changing the startup device sequenceExiting the Setup Utility program ThinkCentre User Guide Updating system programs Using system programsUpdating flashing the Bios from a disc Click Download Drivers & Software Click Use Quick Path Updating flashing the Bios from your operating systemRecovering from a POST/BIOS update failure Getting the latest device drivers for your computer Preventing problemsKeeping your computer current Updating your operating systemUsing System Update BasicsKeyboard Cleaning your computerComputer Optical mouseMoving your computer Good maintenance practicesCleaning a glass-screen surface Preventing problems ThinkCentre User Guide Troubleshooting and diagnostics Basic troubleshootingTroubleshooting procedure TroubleshootingAudio problems No audio in WindowsNo audio in DOS applications or games CD problemsSound comes from one external speaker only Black screen instead of DVD video DVD problemsCD or DVD does not work Playback is very slow or choppy DVD movie will not playNo audio or intermittent audio while playing DVD movie Invalid disc or no disc found messageAll or some keys on the keyboard do not work Intermittent problemsKeyboard, mouse, or pointing device problems Pointer on the screen does not move smoothly with the mouse Wireless keyboard does not workMouse or pointing device does not work Fingerprint reader does not workMonitor problems Wrong characters appear on the screenImage appears to be flickering Image is discoloredYour computer cannot connect to the network Networking problemsEthernet problems Click Start Control Panel Click Hardware and SoundAdapter stops working for no apparent reason Wireless LAN problemWake on LAN feature is not working Bluetooth problem Option problemsWireless WAN problem An option that was just installed does not workAn option that previously worked does not work now Performance and lockup problemsClick Disk Cleanup Insufficient free hard disk drive spaceExcessive number of fragmented files Insufficient memoryPrinter problems Serial port problemsSoftware problems Software does not work as expectedLenovo Solution Center USB problemsDiagnostic programs Lenovo ThinkVantage Toolbox Creating a diagnostic discRunning the diagnostic program from a diagnostic disc PC-Doctor for DOSThinkCentre User Guide Getting information, help, and service Calling for service Help and serviceUsing the documentation and diagnostic programs Lenovo Support Web siteUsing other services Purchasing additional servicesThinkCentre User Guide Appendix A. Notices 115Trademarks Television output notice Appendix B. Regulatory informationExport classification notice Electronic emissions noticesIndustry Canada Class B emission compliance statement Additional regulatory information ThinkCentre User Guide Recycling information Appendix C. Weee and recycling informationImportant Weee information 121Battery recycling information for Taiwan Recycling information for BrazilBattery recycling information for the European Union ThinkCentre User Guide 125 China RoHS Turkish RoHSUkraine RoHS India RoHS Index 127PCI card 129 ThinkCentre User Guide